Theoretical P-Wave Travel Times

Magnitude 3.5 UTAH

Theoretical P-wave Travel Times

Theoretical P-wave Travel Times

These maps show the predicted (theoretical) travel times, in minutes, of the compressional (P) wave from the earthquake location to points around the globe. The travel times are computed using the spherically-symmetric IASP91 reference earth velocity model. The heavy black lines shown are the approximate distances to the P-wave shadow zone (103 to 140 degrees).

Theoretical P-Wave Travel Times
City Distance
(degrees)
Travel Time
(min:secs)
Arrival Time
UTC
Phase
Phoenix, Arizona 4.42 1:08.020:03:29.0Pn
Los Angeles, California 5.58 1:24.120:03:45.1Pn
Albuquerque, New Mexico 5.89 1:28.220:03:49.2Pn
Golden, Colorado 6.49 1:36.520:03:57.5Pn
San Francisco, California 7.36 1:48.520:04:09.5Pn
Seattle, Washington 12.06 2:52.820:05:13.9Pn
Wichita, Kansas 12.50 2:58.820:05:19.8Pn
Brownsville, Texas 17.76 4:08.420:06:29.4Pn
Duluth, Minnesota 17.86 4:09.620:06:30.6Pn
St. Louis, Missouri 17.99 4:11.220:06:32.1Pn
Mexico City, Mexico 21.98 4:55.220:07:16.2P
Knoxville, Tennessee 22.41 4:59.820:07:20.8P
Washington, D.C. 28.21 5:54.120:08:15.1P
Ottawa, Canada 28.79 5:59.220:08:20.2P
Philadelphia, Pennsylvania 29.49 6:05.420:08:26.4P
New York, New York 30.26 6:12.320:08:33.3P
Miami, Florida 30.30 6:12.620:08:33.6P
Boston, Massachusetts 32.25 6:29.820:08:50.8P
Anchorage, Alaska 32.75 6:34.120:08:55.1P
Bangor, Maine 33.72 6:42.620:09:03.6P
Honolulu, Hawaii 41.80 7:50.820:10:11.8P
San Juan, Puerto Rico 45.16 8:17.920:10:38.9P
Lima, Peru 60.0410:08.320:12:29.3P
Bergen, Norway 70.0011:13.120:13:34.1P
London, England 73.5611:34.520:13:55.5P
Tokyo, Japan 80.5612:13.920:14:34.9P
Moscow, Russia 83.5712:29.720:14:50.7P
Rome, Italy 86.4912:44.320:15:05.3P
Beijing, China 90.3113:02.420:15:23.4P
Agana, Guam 91.1913:06.520:15:27.5P
Wellington, New Zealand 102.5613:57.820:16:18.8Pdiff
Brisbane, Australia 109.1414:27.020:16:48.0Pdiff
Palmer Station, Antarctica 111.5114:37.520:16:58.5Pdiff
Kathmandu, Nepal 112.6114:42.420:17:03.4Pdiff
Nairobi, Kenya 134.3716:19.020:18:40.0Pdiff

Travel Time Information and Calculator

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver